formula for 3 conditions

hi everyone,


I would like to know how to make a formula for 3 conditions in the file I send in attchament: (if possible in just 1 formula)


a) If column "I" is equal to "0" the column "T" will be empty; (T8 - T11 and T12);

b) if column "T" is higher than "0" will be dark pink;

c) if column "T" is equal or less than "0" will be green.

thanks